City comparison
New York vs Washington, D.C. air quality
Live AQI comparison between New York and Washington, D.C.. Data updates every 15 minutes.
New York and Washington, D.C. differ by 5 AQI points right now. Washington, D.C. has cleaner air at this moment.
What drives air quality in New York and Washington, D.C.
New York
New York air quality varies significantly between dense traffic corridors, waterfront zones, and neighborhood streets with lighter flow. Nitrogen dioxide often peaks near highways, bridges, and major bus routes, while PM2.5 reflects both local emissions and regional background transport. Building density can intensify street-level exposure in some parts of Manhattan and the Bronx.
Washington, D.C.
Washington, D.C. sits in a humid mid-Atlantic basin where traffic emissions, power-sector influences, and summer ozone chemistry combine. Nitrogen dioxide hotspots track major arterials and the Beltway, while fine particles can build during stagnant weather.
Both cities are shaped by different combinations of traffic density, terrain, weather patterns, and seasonal events, which is why the same AQI band can feel different on the ground. Checking live readings rather than relying on reputation or past visits is the most reliable way to plan travel, exercise, or outdoor time between the two.
Live AQI from Open-Meteo (CAMS). Conditions change hourly — refresh for the latest readings. South African cities may show WAQI station data on their dedicated pages.